DE102010022094A1 - Method for manufacturing base plate for bipolar plate of fuel cell, involves cutting source material i.e. stainless steel film, of base plate using laser beam from remote laser system, and reworking base plate after cutting - Google Patents
Method for manufacturing base plate for bipolar plate of fuel cell, involves cutting source material i.e. stainless steel film, of base plate using laser beam from remote laser system, and reworking base plate after cutting Download PDFInfo
- Publication number
- DE102010022094A1 DE102010022094A1 DE102010022094A DE102010022094A DE102010022094A1 DE 102010022094 A1 DE102010022094 A1 DE 102010022094A1 DE 102010022094 A DE102010022094 A DE 102010022094A DE 102010022094 A DE102010022094 A DE 102010022094A DE 102010022094 A1 DE102010022094 A1 DE 102010022094A1
- Authority
- DE
- Germany
- Prior art keywords
- base plate
- cutting
- fuel cell
- plate
- laser beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen einer Grundplatte nach den Merkmalen des Oberbegriffs des Anspruchs 1 und eine Vorrichtung zum Herstellen einer Grundplatte nach den Merkmalen des Oberbegriffs des Anspruchs 5.The invention relates to a method for producing a base plate according to the features of the preamble of claim 1 and an apparatus for producing a base plate according to the features of the preamble of
Aus dem Stand der Technik sind, wie in der
Der Erfindung liegt die Aufgabe zugrunde, ein verbessertes Verfahren und eine verbesserte Vorrichtung zum Herstellen einer Grundplatte anzugeben.The invention has for its object to provide an improved method and an improved apparatus for producing a base plate.
Die Aufgabe wird erfindungsgemäß durch ein Verfahren zum Herstellen einer Grundplatte mit den Merkmalen des Anspruchs 1 und eine Vorrichtung zum Herstellen einer Grundplatte mit den Merkmalen des Anspruchs 5 gelöst.The object is achieved by a method for producing a base plate having the features of claim 1 and an apparatus for producing a base plate having the features of
Bevorzugte Ausgestaltungen und Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.Preferred embodiments and further developments of the invention are specified in the dependent claims.
In einem Verfahren zum Herstellen einer Grundplatte für eine Bipolarplatte einer Brennstoffzelle wird erfindungsgemäß die Grundplatte mittels Remote-Laserschneiden aus einem Ausgangsmaterial ausgeschnitten.In a method for producing a base plate for a bipolar plate of a fuel cell, the base plate according to the invention is cut out of a starting material by means of remote laser cutting.
Das Ausgangsmaterial ist zweckmäßigerweise Metall, insbesondere eine Edelstahlfolie. Im Remote-Laserschneiden, auch Laser-Remote-Schneiden genannt, wird der Laserstrahl durch eine Strahlablenkeinheit geführt, welche einen oder mehrere Spiegel aufweist, vorzugsweise eine Kombination von rotierenden Facettenspiegeln und/oder verkippbaren Ablenkspiegeln. Mittels dieser Strahlablenkeinheit, auch dynamischer Scanner, Scannerkopf oder Spiegelscanner genannt, wird der Laserstrahl auf seine jeweilige Arbeitsposition auf dem zu bearbeitenden Ausgangsmaterial ausgerichtet und entlang eines vorgegebenen Schneidweges geführt.The starting material is expediently metal, in particular a stainless steel foil. In remote laser cutting, also called laser remote cutting, the laser beam is guided through a beam deflection unit which has one or more mirrors, preferably a combination of rotating facet mirrors and / or tiltable deflection mirrors. By means of this beam deflection unit, also called a dynamic scanner, scanner head or mirror scanner, the laser beam is aligned with its respective working position on the starting material to be processed and guided along a predetermined cutting path.
Aufgrund eines großen Abstandes zwischen der Strahlablenkeinheit und dem zu bearbeitenden Ausgangsmaterial bewirken kleine Auslenkungen in der Strahlablenkeinheit große Wegstrecken auf dem Ausgangsmaterial. Aufgrund eines derartigen Übersetzungsverhältnisses und relativ kleiner bewegter Massen werden hohe Schneidgeschwindigkeiten am Ausgangsmaterial erzielt. Dadurch wird gegenüber aus dem Stand der Technik bekannten Verfahren wie beispielsweise Stanzen oder Laserschneiden, bei welchem der Laser mittels eines relativ zum zu bearbeitenden Werkstück beweglichen Schneidkopfes über das zu bearbeitende Werkstück bewegt wird, eine erhebliche Fertigungszeitreduzierung erreicht, d. h. die Grundplatte wird wesentlich schneller aus dem Ausgangsmaterial herausgeschnitten. Des Weiteren wird insbesondere im Vergleich zum Stanzen eine Fertigungskostenreduzierung erreicht, da das Stanzen mit hohen Werkzeugfertigungskosten zur Stanzwerkzeugherstellung und mit hohen Werkzeugwartungskosten aufgrund eines erforderlichen Nachschärfens eines Stanzwerkzeuges verbunden ist, welche beim Remote-Laserschneiden nicht anfallen.Due to a large distance between the beam deflecting unit and the starting material to be processed, small deflections in the beam deflecting unit cause large distances on the starting material. Due to such a gear ratio and relatively small moving masses high cutting speeds are achieved on the starting material. As a result, in comparison with methods known from the prior art, such as stamping or laser cutting, in which the laser is moved over the workpiece to be machined by means of a cutting head which is movable relative to the workpiece to be machined, a considerable reduction in production time is achieved, ie. H. The base plate is cut much faster from the starting material. Furthermore, a reduction in production costs is achieved, in particular in comparison with stamping, since punching is associated with high tooling costs for punching tool production and high tool maintenance costs due to a requisite re-sharpening of a punching tool which does not occur in remote laser cutting.
Ausführungsbeispiele der Erfindung werden anhand von Zeichnungen näher erläutert.Embodiments of the invention will be explained in more detail with reference to drawings.
Dabei zeigen:Showing:
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.
Im Remote-Laserschneiden, auch Laser-Remote-Schneiden genannt, wird ein Laserstrahl
Aufgrund eines großen Abstandes zwischen der Strahlablenkeinheit
Nachdem die Grundplatte
Deshalb erfolgt ein in
Durch das Ausrichten des Elektronenstrahls
Des Weiteren kann mittels des Elektronenstrahls
Die Elektronenstrahlbearbeitung wird vorzugsweise in einer hier nicht dargestellten Vakuumkammer durchgeführt, wobei unter dem in der Technik verwendeten Begriff des Vakuums ein sehr geringer Umgebungsdruck zu verstehen ist. Die Vakuumkammer kann dabei, falls erforderlich, mit Blei ummantelt sein, da während der Elektronenstrahlbearbeitung Röntgenstrahlung entsteht. Eine derartige Anlage wird auch als Elektronenstrahlofen bezeichnet.The electron beam machining is preferably carried out in a vacuum chamber, not shown here, wherein the concept of vacuum used in the art is to be understood as meaning a very low ambient pressure. If necessary, the vacuum chamber can be sheathed with lead, since X-rays are produced during electron beam processing. Such a system is also called an electron beam furnace.
Die Elektronenstrahlbearbeitung erfolgt vorzugsweise in einem Durchlaufverfahren, wobei die Grundplatte
In einer weiteren, hier nicht dargestellten Ausführungsform kann das Nachbearbeiten auch mittels einer Laserstrahlbearbeitung durchgeführt werden, vorzugsweise mittels derselben oder einer weiteren, ähnlichen Remote-Laseranlage
Auch mittels der Laserstrahlbearbeitung kann das Material der Schneidränder
Auch mittels der Laserstrahlbearbeitung kann die Oberfläche der Grundplatte
Durch das Ausschneiden der Grundplatte
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Grundplattebaseplate
- 22
- Remote-LaseranlageRemote laser system
- 33
- Ausgangsmaterialstarting material
- 44
- Laserstrahllaser beam
- 55
- StrahlablenkeinheitBeam deflection unit
- 66
- Schneidrandcutting edge
- 77
- SchmelztropfenanhaftungSchmelztropfenanhaftung
- 88th
- ElektronenstrahlschweißanlageElectron beam welding machine
- 99
- Elektronenstrahlelectron beam
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 2007/0178361 A1 [0002] US 2007/0178361 A1 [0002]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010022094A DE102010022094A1 (en) | 2010-05-31 | 2010-05-31 | Method for manufacturing base plate for bipolar plate of fuel cell, involves cutting source material i.e. stainless steel film, of base plate using laser beam from remote laser system, and reworking base plate after cutting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010022094A DE102010022094A1 (en) | 2010-05-31 | 2010-05-31 | Method for manufacturing base plate for bipolar plate of fuel cell, involves cutting source material i.e. stainless steel film, of base plate using laser beam from remote laser system, and reworking base plate after cutting |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010022094A1 true DE102010022094A1 (en) | 2011-12-01 |
Family
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Family Applications (1)
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DE102010022094A Withdrawn DE102010022094A1 (en) | 2010-05-31 | 2010-05-31 | Method for manufacturing base plate for bipolar plate of fuel cell, involves cutting source material i.e. stainless steel film, of base plate using laser beam from remote laser system, and reworking base plate after cutting |
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DE (1) | DE102010022094A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2608299A1 (en) | 2011-12-22 | 2013-06-26 | Feintool Intellectual Property AG | Device and method for manufacturing metallic bipolar panels |
WO2020165140A1 (en) | 2019-02-11 | 2020-08-20 | Theodor Gräbener GmbH & Co. KG | Device and method for producing laser-welded metal sheets, in particular for indexing such metal sheets and use of the device and method |
DE102021119426A1 (en) | 2021-07-27 | 2023-02-02 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a press-hardened shaped sheet metal part, press-hardened shaped sheet metal part produced therewith and plant for manufacturing press-hardened shaped sheet metal parts |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070178361A1 (en) | 2006-01-12 | 2007-08-02 | Ultracell Corporation | Manufacture of electrical energy generation equipment |
-
2010
- 2010-05-31 DE DE102010022094A patent/DE102010022094A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070178361A1 (en) | 2006-01-12 | 2007-08-02 | Ultracell Corporation | Manufacture of electrical energy generation equipment |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2608299A1 (en) | 2011-12-22 | 2013-06-26 | Feintool Intellectual Property AG | Device and method for manufacturing metallic bipolar panels |
US9630233B2 (en) | 2011-12-22 | 2017-04-25 | Feintool International Holding Ag | Method and apparatus to manufacture metallic bipolar plates |
WO2020165140A1 (en) | 2019-02-11 | 2020-08-20 | Theodor Gräbener GmbH & Co. KG | Device and method for producing laser-welded metal sheets, in particular for indexing such metal sheets and use of the device and method |
DE102021119426A1 (en) | 2021-07-27 | 2023-02-02 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a press-hardened shaped sheet metal part, press-hardened shaped sheet metal part produced therewith and plant for manufacturing press-hardened shaped sheet metal parts |
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R005 | Application deemed withdrawn due to failure to request examination | ||
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: H01M0008020000 Ipc: H01M0008020200 |